J. J. Thomson
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Sir Joseph John Thomson was a British physicist. He received the 1906 Nobel Prize in Physics "in recognition of the great merits of his theoretical and experimental investigations on the conduction of
Thomson in 1915
Title page On the Chemical Combination of Gases by Joseph John Thomson 1856 1940
First page to Notes on Recent Researches in Electricity and Magnetism (1893)
Plaque commemorating Thomson's discovery of the electron outside the old Cavendish Laboratory.
Electron
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The electron is a subatomic particle whose electric charge is negative one elementary charge. It is an elementary particle contained in the matter that makes up the universe.
J. J. Thomson
…conduction of electricity by gases." In 1897, he showed that cathode rays were composed of previously unknown negatively charged particles (now called electrons), which he calculated must have bodies much smaller than atoms and a very large charge-to-mass ratio. The electron was the first subatomic particle to…
A beam of electrons deflected by a magnetic field into a circle
Robert Millikan
A lightning discharge consists primarily of a flow of electrons. The electric potential needed for lightning can be generated by a triboelectric effect.